Improvement in securing ships  hatches



5 @bini tal tateaateut JOHN R. BICI-1,' OF TREMONT, MAINE, ASSIGNOR TOW. J. STOCK- BRIDGE, OF GLOUCESTERq MASSACHUSETTS.

'Lena-s Patent No. 88,330, daad ,Ma/rah 3o, 17869.

IMPROVEMENT IN SECURING- SHIPS HATCHIES.

To all persons to whom these presents ma/y come Beit known that I, JOHNR. RICH, of Tremont, of the county of Hancock, and State of lMaine, havemade a new and useful invention, having reference to the Hatches ofNavigable Vessels; and do herebyldeclarel the same to be fully describedin the following specification, and represented in the accompanyingdrawings, of which- Figure l is a top view,

Figure 2, -a side elevation, y

Figure 3, a transverse section, and

Figure 4, al longitudinal section of a hatchway as providedwith myinvention, the purpose of which is toV render the hatch water-tight,without the necessity o f calking it in the usual manner.

A denotes the hatchway-frame, elevated above a deck, B, in the .ordinaryWay.

To each of thel ends, as well as to each ofthe sides of such frame, Iapply a bar,.C, having its inner surface lined with a strip, a, ofvulcanized India rubber, such bal being held to the hatchway-frame bytwo or any other proper number of clamp-screws, b b, going through thebar, and being screwed into metallic plates c c, iixedon thehatchway-frame. v

On the top surface of the cross-bar d of the hatchway, Iaix a strip, e,of India rubber, to extend from end to end of it; and, when two hatches,ff', are used, I affix, to the inner edge of one of them, a strip,` g,of India rubber, the whole being as represented in the drawings. j y

Each ofthe bars C, with its lining of vulcanized India rubber, extendsabove the hatchway-frame, so as to be The lower edge, or bottom of eachbar C is also covered with a layer of India rubber, as shown at k.

The clamp-screws are run obliquely'through the bars and thehatchway-frame, in manner as represented, inl

order that, while being screwed up, they will also force the barsdownward, as well as toward the said frame. In this way, a tight joint,between such bar C and the deck, will be attained.

rIhe hatches will also be crowded together, so as to make a tight jointbetween their next adjacent edges. I claim the combination andarrangement of the clamp-bars C, and their clamp-screws, and elasticwaterproof strips, or linings, with the hatchwayframe, and so as tooperate with the hatches thereof, as specified. I also claim theapplication of the elastic`strips, or linings to the lower and innersurfaces of the bars C, and arranging the clamp-screws in the obliquemanner, with' reference to the bars and hatchway-ii'ame, as described. Ialso claim the combination of either or both of the elastic Water-proofstrips, or linings e y with the two hatches and the bars C, andtheir'water-proof elastic linings and clamp-screws, applied to thehatch- Way-frame, as and to operate as explained.

JOHNv R. RICH.

Witnesses:

R.H. EDDY, F. P. HALE, Jr.

